.footer-icons {
  display: inline-flex;
  gap: 0.5rem; /* spacing between icons */
}

.footer-icons a {
  display: inline-flex;
}

.index-page-icon-link img {
  display: inline-block;
  vertical-align: middle;
  height: 1em; /* or 16px */
  margin-right: 0.4em;
}

.index-page-icon-link a {
  display: inline-flex;
  align-items: center;
}